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Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Air Actions, California

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Air Actions in the San Joaquin Valley - PM2.5

On this page:

  • August 15, 2013 - Proposed Approval of the San Joaquin Valley 1997 PM2.5 Contingency Measures and Interim-Final Rule to Stay and Defer Sanctions
  • September 30, 2011 - Final Action on San Joaquin Valley 2008 PM2.5 Plan
  • June 29, 2011 - Proposed Partial Approval/Partial Disapproval of San Joaquin Valley 2008 PM2.5 Plan
  • November 8, 2010 - Partial Approval and Disapproval of the San Joaquin Valley 2008 PM2.5 Plan

Proposed Approval of the San Joaquin Valley 1997 PM2.5 Contingency Measures and Interim-Final Rule to Stay and Defer Sanctions

On August 15, 2013, EPA signed a proposal to approve the San Joaquin Valley’s 1997 PM2.5 NAAQS contingency measures. EPA has also signed an Interim Final Rule to stay off-set sanctions currently in place in the San Joaquin Valley and defer the start of highway sanctions in the area. EPA will accept comment on both actions for 30 days after publication in the Federal Register.

Final Action on San Joaquin Valley 2008 PM2.5 Plan

On September 30, 2011, EPA approved nearly all elements of the San Joaquin Valley 2008 PM2.5 plan. Today's final action will become effective 60 days from the date of publication in the Federal Register.

Contact Information
Frances Wicher (Wicher.Frances@epa.gov)
(415) 972-3957


Proposed Partial Approval/Partial Disapproval of San Joaquin Valley 2008 PM2.5 Plan

On June 29, 2011, EPA proposed action on the San Joaquin Valley 2008 PM2.5 plan. EPA is providing a 30 day public comment period from the date of publication in the Federal Register.


Partial Approval and Disapproval of the San Joaquin Valley 2008 PM2.5 Plan

On November 8, 2010, EPA's Regional Administrator signed a proposed rule to approve in part and disapprove in part the San Joaquin Valley 2008 PM2.5 plan. The parts of the plan; prepared by the San Joaquin Valley Unified Air Pollution Control District and the California Air Resources Board that we proposed to approve; strengthen the SIP. The portions of the plan we proposed to disapprove; do not meet the requirements of the Clean Air Act and EPA regulations. We are taking public comments for 60 days after the publication of our action in the Federal Register.

San Joaquin Valley Particulate Matter (PM-10) Pollution »
San Joaquin Valley Ozone Actions »
Related Information: New Source Review Rules »

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